The Hook Programming Language

Hook is an imperative, cross-platform, dynamically typed scripting language based on the mutable value semantics approach. It was written entirely by hand in C using easy-to-understand techniques like recursive descent parsing, stack-based virtual machine, and reference counting.

What does it look like

Hook has a modern C-like syntax. See:

fn factorial(n) {
  if (n == 0)
    return 1;
  return n * factorial(n - 1);
}

Features

The main features are:

• Imperative
• Cross-platform
• Dynamically typed
• Mutable value semantics approach
• C-like syntax
• Value-captured closure

Warning: Hook is still in its early stages of development and is not production-ready.

Installing

For Linux (x64, arm64), and macOS (x64), use the following command to install Hook:

curl -sSL https://github.com/fabiosvm/hook-lang/releases/download/0.1.0/install.sh | sh

For Windows (x64), open a cmd prompt and use:

cd %tmp%
curl -sSLO https://github.com/fabiosvm/hook-lang/releases/download/0.1.0/install.bat
install

Building from the source code

If you prefer, follow the instructions in BUILDING.md to build Hook locally.

Hello, world!

It's possible to run our Hello, world! directly from the command-line interface:

hook -e 'println("Hello, world!");'

Documentation

Sorry. The language undergoes constant changes, including in its lexemes and syntax. That's why there's no documentation. Maybe the examples folder will help.

License

Hook is released under MIT license. See LICENSE for more details.